Mid-Level .NET Engineer — Real-Time Trading Platform

Topstep

United States

Hybrid

USD 125,000 - 160,000

Full time

14 days+

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Benefits offered by this job

Remote/Hybrid

Company holidays

Health insurance

401(k) match

Paid time off

Referral bonus

Groceries budget

Job summary

Topstep is seeking a Mid-Level Software Engineer to contribute to real-time trading platform components. You’ll work on services and APIs powering market data delivery and brokerage integrations in a modern .NET stack and occasionally on the React/TypeScript frontend.

You’ll own features end-to-end, collaborate with product, and grow in distributed systems and production operations with guidance from senior engineers.

Qualifications

3–4 years of software engineering experience building production features.
Strong C# and .NET proficiency with production services.
Understanding of RESTful API design and service integration.
Experience with databases and basic schema design.
Experience writing automated tests and production debugging.

Responsibilities

Build and ship features for services and APIs powering core trading platform capabilities.
Own features from design through deployment with senior team support.
Collaborate with product and design to translate requirements into solutions.
Write clean, well-tested code emphasizing reliability and performance.
Participate in on-call rotations and incident responses with the team.

Skills

C#/.NET

RESTful APIs

Cloud/Distributed systems

Testing & QA

Production debugging

Collaboration

Tools

Docker

AWS

Redis

Kafka

PostgreSQL/SQL Server

SignalR/WebSockets

Job description

You’ll own features end-to-end, collaborate with product, and grow in distributed systems and production operations with guidance from senior engineers.

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